import math

for i in range(1,50):
    print(str(i) + "-0.007  " + str(2+math.log(i, 0.007)))
    #print(str(i) + "-0.003:" + str(2+math.log(i, 0.003)))
    #print(str(i) + "-0.005:" + str(2+math.log(i, 0.005)))